Natural fluctuations of the difference between the frequencies of opposite waves in a ring laser

Journal Article · Sun Nov 01 04:00:00 EST 1981 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1981v011n11ABEH008638· OSTI ID:5677230

Gelikonov, V M; Turkin, A A

An experimental investigation was made of natural fluctuations of the difference between the frequencies of opposite waves in an He--Ne ring laser emitting at the wavelength of 1.15 ..mu.. when the excess over the lasing threshold was up to a factor of 2.5. The dependences of the spectral density of these fluctuations on the output power were determined when this power was varied by introducing the losses into the resonator or by altering the pumping rate. The experimental results were in good agreement with a phenomenological theory. The nature of saturation of the active medium was also determined: it differed from the usually assumed approximation for an inhomogeneously broadened gain profile.

• Research Organization: Institute of Applied Physics, Academy of Sciences of the USSR, Gorki
• OSTI ID: 5677230
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 11:11; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
FLUCTUATIONS
GAS LASERS
HELIUM-NEON LASERS
LASERS
RINGS
SATURATION
VARIATIONS